查询词典 sulfuric

A process based upon solvent extraction has been developed for the recovery of phosphoric acid from a leaching liquor obtained by decomposition of phosphate rock with sulfuric acid.

本文采用二丁基亚砜作为萃取剂，对于用硫酸分解磷矿而得的粗磷酸进行多级逆流萃取及反萃取，以获得高纯度的磷酸和磷酸盐。

The manganese salt of sulfuric acid and is needed for proper bone formation, growth and reproduction

锰盐的硫酸帮助进行适当的骨骼形成，发育和繁殖。

Nsted acid ionic liquids were inactive for the alkylation of isobutane with butene.In contrast,the chloroaluminate ioni c liquids were very active for the alkylation.However,the qualities of the alkylate oils using chloroaluminate ionic liquids were unsatisfied and worse than that of the products in the industrial sulfuric acid process obviously.

发现：所制备Bronsted酸离子液体无催化烷基化反应活性；而氯铝酸离子液体则具有很高的催化烷基化反应活性，但所得烷基化油质量较差，明显低于工业硫酸法水平。

It is based on the catalytic action of Iron on the oxidizing discoloration reaction between Amaranth and KIO4 in sulfuric acid medium.

研究了在H2SO4介质中，痕量Fe催化KIO4氧化苋菜红的褪色反应。

It was found that high reclaiming cost was required for the process catalyzed by sulfuric acid or ammonium hydroxide, and the process of PET hydrolysis at high temperature showed profitable.

此外，以氢氧化铵或以硫酸催化程序中必须消耗多量硫酸，及产生石膏或硫酸铵废弃物，因而所需的操作费用较高。

Thermal and thermo-oxidative degradation of chitin with ammonium nitrate,ammonium sulfate and concentrated sulfuric acid were studied.

讨论了硝酸铵、硫酸铵和浓硫酸对自制甲壳素热降解和热氧化降解过程的影响。

Lubei Chemical (600727, the closing price of 4.89 yuan) of the Securities Department staff said that the company produces ammonium phosphate, sulfuric acid, cement and other products, as the national economic slowdown, the company has reduced The ex-factory price of the product, but the company has not lowered prices of raw materials, the company's profits by a certain amount of pressure.

鲁北化工（600727，在4.89元的收盘价的证券部工作人员）说，该公司生产的磷铵，硫酸，水泥等产品，作为国家经济放缓，公司降低了出厂产品的价格，但该公司没有降低原材料价格，由一定的压力，该公司的利润。

Hardness and temperature, current density, chromium content of sulfuric acid anhydride and are closely related.

铬层软度与温度、电流密度、铬酐及硫酸的含量都有紧密亲密的干系。

The polysaccharide and glucan contents were analyzed by phenol-sulfuric acid method and aniline blue dye fluorescence assay, respectively.

首先将液态灵芝发酵液和商业灵芝粉以酚硫酸法测多醣产量，再以萤光分析方法进行葡聚醣定量。

The running principle and flow of the platform are illustrated by the example of Fe and sulfuric acid chemistry action. The system can animatedly displays chemical experiment process with expansibility, reliability characteristics.

结果表明系统具有易扩充、较好的可靠性、且能动态反映虚拟实验过程，提供了在现有网络基础下的分布式实现三维虚拟实验的一种新方案。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。